Tehuantepec Forecast

November 9, 2025, 9:01 am (UTC: -05:00)
Subject: Tehuantepec Forecast

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This forecast has not been reviewed. It was generated from an automatic model.

.WARNINGS.

...GALE WARNING...
.18 HOUR FORECAST GULF OF TEHUANTEPEC N OF 15N N WINDS 20 TO 30
KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 15N96W TO 14N96W TO
14N95W TO 15N95W TO 16N94W...INCLUDING THE GULF OF
TEHUANTEPEC... N WINDS 20 TO 30 KT. SEAS TO 3.0 M.
.27 HOUR FORECAST WITHIN 16N95W TO 15N95W TO 15N96W TO 14N96W TO
14N95W TO 16N95W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE
WINDS 30 TO 35 KT. SEAS TO 3.5 M. ELSEWHERE WITHIN 16N94W TO
16N95W TO 13N96W TO 14N94W TO 16N94W N TO NE WINDS 20 TO 30 KT.
SEAS TO 3.0 M.
.48 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 15N96W TO 12N99W TO
12N97W TO 14N94W TO 16N94W...INCLUDING THE GULF OF
TEHUANTEPEC... N TO NE WINDS 30 TO 45 KT. SEAS 2.5 TO 6.0 M.
ELSEWHERE WITHIN 15N93W TO 16N96W TO 13N98W TO 11N101W TO 11N98W
TO 13N94W TO 15N93W NE WINDS 20 TO 30 KT. SEAS 2.5 TO 5.0 M IN N
TO NE SWELL. REMAINDER OF AREA WITHIN 15N93W TO 16N96W TO 15N98W
TO 09N103W TO 09N97W TO 10N94W TO 15N93W WINDS 20 KT OR LESS.
SEAS 2.5 TO 3.5 M IN N TO NE SWELL.

.18 HOUR FORECAST GULF OF TEHUANTEPEC N OF 15N N WINDS 20 TO 30
KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 15N96W TO 14N96W TO
14N95W TO 15N95W TO 16N94W...INCLUDING THE GULF OF
TEHUANTEPEC... N WINDS 20 TO 30 KT. SEAS TO 3.0 M.
.27 HOUR FORECAST WITHIN 16N95W TO 15N95W TO 15N96W TO 14N96W TO
14N95W TO 16N95W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE
WINDS 30 TO 35 KT. SEAS TO 3.5 M. ELSEWHERE WITHIN 16N94W TO
16N95W TO 13N96W TO 14N94W TO 16N94W N TO NE WINDS 20 TO 30 KT.
SEAS TO 3.0 M.
.48 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 15N96W TO 12N99W TO
12N97W TO 14N94W TO 16N94W...INCLUDING THE GULF OF
TEHUANTEPEC... N TO NE WINDS 30 TO 45 KT. SEAS 2.5 TO 6.0 M.
ELSEWHERE WITHIN 15N93W TO 16N96W TO 13N98W TO 11N101W TO 11N98W
TO 13N94W TO 15N93W NE WINDS 20 TO 30 KT. SEAS 2.5 TO 5.0 M IN N
TO NE SWELL. REMAINDER OF AREA WITHIN 15N93W TO 16N96W TO 15N98W
TO 09N103W TO 09N97W TO 10N94W TO 15N93W WINDS 20 KT OR LESS.
SEAS 2.5 TO 3.5 M IN N TO NE SWELL.

GULF OF TEHUANTEPEC GALE WARNING: FRESH TO STRONG N GAP WINDS
WILL DEVELOP ACROSS THE GULF OF TEHUANTEPEC SUN AFTERNOON BEFORE
WINDS QUICKLY STRENGTHEN TO GALE FORCE LATE SUN NIGHT, AS A
STRONG COLD FRONT MOVES THROUGH THE GULF OF AMERICA WITH STRONG
HIGH PRESSURE BUILDING ACROSS EASTERN MEXICO IN ITS WAKE. THIS
EVENT IS EXPECTED TO PRODUCE A VERY LARGE AREA OF GALE-FORCE
WINDS EXTENDING SOUTH AND SOUTHWESTWARD OF TEHUANTEPEC TO NEAR
12N98W BY LATE MON NIGHT, PRODUCING AN EXTENSIVE AREA OF VERY
ROUGH SEAS OF 12 TO 20 FT. GALE-FORCE WINDS WILL CONTINUE ACROSS
TEHUANTEPEC INTO EARLY WED MORNING, THEN DIMINISH SLIGHTLY, WITH
WINDS PULSING TO NEAR 30 KT EACH NIGHT THEREAFTER THROUGH EARLY
FRI MORNING.
A SURFACE TROUGH EXTENDS FROM 1013 MB LOW PRES OFFSHORE OF BAJA
CALIFORNIA NORTE NEAR 32N120W TO 23N122W, WHILE A SECOND SURFACE
TROUGH EXTENDS ALONG THE EASTERN SHORELINE OF THE GULF OF
CALIFORNIA TO LAS TRES MARIAS. THE WEAK PRESSURE GRADIENT BETWEEN
THESE FEATURES IS YIELDING LIGHT TO GENTLE WINDS ACROSS THE BAJA
OFFSHORE WATERS, EXCEPT MODERATE N TO NE WINDS FROM CABO SAN
LAZARO SOUTHWARD TO 20N. LIGHT AND VARIABLE WINDS ARE ALSO NOTED
INSIDE THE GULF OF CALIFORNIA, BECOMING GENTLE N WINDS FROM THE
ENTRANCE OF THE GULF TO THE WATERS NEAR CABO CORRIENTES. NW
SWELL CONTINUES TO SLOWLY SUBSIDE ACROSS THE BAJA WATERS TONIGHT.
HOWEVER SATELLITE ALTIMETER DATA FROM AROUND MIDNIGHT CONTINUED
TO SHOW SEAS OF 8 TO 11 FT OFFSHORE OF BAJA NORTE. ELSEWHERE
SOUTH OF PUNTA EUGENIA TO THE REVILLAGIGEDO ISLANDS, SEAS ARE
GENERALLY 7 TO 10 FT. SEAS ARE 3 FT OR LESS INSIDE THE GULF.
LIGHT TO GENTLE NW TO W WINDS CONTINUE ELSEWHERE ACROSS THE
MEXICAN WATERS TO THE GULF OF TEHUANTEPEC. SEAS ACROSS THESE
WATERS ARE 4 TO 7 FT IN MIXED NW AND SW SWELL, EXCEPT TO 8 FT
OFFSHORE OF CABO CORRIENTES.
FOR THE FORECAST, ROUGH SEAS IN NW SWELL WILL GRADUALLY SUBSIDE
FROM N TO S ACROSS THE BAJA CALIFORNIA WATERS AND OFFSHORE OF
SOUTHWESTERN MEXICO THROUGH LATE SUN NIGHT, DIMINISHING TO LESS
THAN 8 FT ON MON. ELSEWHERE, FRESH TO STRONG N GAP WINDS WILL
DEVELOP IN THE GULF OF TEHUANTEPEC ON SUN AFTERNOON BEFORE WINDS
QUICKLY STRENGTHENING TO GALE FORCE LATE SUN NIGHT, AS A
STRONG COLD FRONT MOVES THROUGH THE GULF OF AMERICA WITH STRONG
HIGH PRESSURE BUILDING ACROSS EASTERN MEXICO IN ITS WAKE. THIS
GALE EVENT IS EXPECTED TO PRODUCE A VERY LARGE AREA OF GALE-
FORCE WINDS EXTENDING SOUTH AND SOUTHWESTWARD OF TEHUANTEPEC TO
NEAR 12N98W BY LATE MON NIGHT, PRODUCING AN EXTENSIVE AREA OF VERY
ROUGH SEAS OF 12 TO 20 FT. GALE-FORCE WINDS WILL CONTINUE ACROSS
TEHUANTEPEC INTO EARLY WED MORNING, THEN DIMINISH SLIGHTLY, WITH
WINDS PULSING TO NEAR 30 KT EACH NIGHT THEREAFTER THROUGH EARLY
FRI MORNING.

FOR THE FORECAST, MODERATE NE GAP WINDS WILL PULSE TO FRESH AT
NIGHT ACROSS THE PAPAGAYO REGION THROUGH EARLY TUE, THEN INCREASE
TO FRESH TO STRONG THROUGHOUT THE REMAINDER OF THE WEEK, AS A
STRONG COLD FRONT MOVES INTO THE NW CARIBBEAN, WITH STRONG HIGH
PRESSURE BUILDING IN THE WAKE OF THE FRONT. FRESH N WINDS MAY
BRIEFLY OCCUR IN THE GULF OF FONSECA AND OFFSHORE OF EL SALVADOR
TUE NIGHT. FARTHER WEST, MODERATE TO FRESH N TO NE WINDS AND
HIGH SEAS ARE EXPECTED OFFSHORE OF GUATEMALA MON NIGHT THROUGH
EARLY WED AS A SIGNIFICANT GALE-FORCE GAP WIND EVENT OCCURS
ACROSS THE GULF OF TEHUANTEPEC REGION.

FOR THE FORECAST, WIDESPREAD ROUGH SEAS IN NW SWELL WILL SLOWLY
SUBSIDE NORTH OF 20N THROUGH MON, EXCEPT FOR THE FAR NORTHWEST
WATERS, AND SOUTH OF 20N THROUGH EARLY NEXT WEEK. A COLD FRONT
ACROSS THE NORTHWESTERN WATERS TONIGHT WILL MEANDER ACROSS THE
AREA THROUGH TUE, WITH FRESH SW WINDS OCCURRING NORTH OF 25N AND
WEST OF 135W AHEAD OF THE FRONT SUN. A COMPLEX LOW PRESSURE
SYSTEM WILL EVOLVE OVER THESE NW WATERS EARLY NEXT WEEK, LEADING
TO FRESH TO STRONG WINDS SURROUNDING THE LOW. NEW NW SWELL WILL
PROPAGATE SOUTHEASTWARD IN THIS AREA TONIGHT THROUGH EARLY NEXT
WEEK, WITH ROUGH SEAS EXPECTED NORTH OF 20N AND WEST OF 130W BY
LATE SUN, AND NORTH OF 12N AND WEST OF 120W BY LATE MON. SEAS IN
EXCESS OF 12 FT ARE EXPECTED TO COVER THE AREA FROM 30N133W TO
24N140W THROUGH LATE SUN NIGHT THEN SLOWLY DIMINISH INTO TUE.
LOOKING AHEAD, STRONG E TO NE WINDS AND ROUGH SEAS GENERATED BY A
GALE FORCE GAP WIND EVENT IN THE GULF OF TEHUANTEPEC WILL SPREAD
LARGE NE SWELL INTO THE WATERS FROM 05N TO 15N AND EAST OF 110W
MON NIGHT THROUGH WED BEFORE DIMINISHING.

SHORT-TERM TEHUANTEPEC
TODAY - NNW 17-21, Seas SW 5-5.9 ft @ 14sec
TONITE - N 18-23, Seas SW 4.2-5.1 ft @ 14sec
MONDAY - N 34-42, Seas N/A ?-? ft @ ?
MONDAY NIGHT - N 30-37, Seas N/A ?-? ft @ ?

LONG-TERM TEHUANTEPEC
TUESDAY - N 30-37, Seas N/A ?-? ft @ ?
WEDNESDAY - N 22-28, Seas N/A ?-? ft @ ?
THURSDAY - N 18-23, Seas N/A ?-? ft @ ?
FRIDAY - N 15-19, Seas N/A ?-? ft @ ?
SATURDAY - N 12-15, Seas N/A ?-? ft @ ?